Heating boiler closure cover, for supporting burner, has air intake opening coupled to burner chamber via air feed chamber extending in ring around latter

摘要

The closure cover has a boiler combustion chamber cover (1) supporting the burner (2) at its center and an air intake opening (4), coupled to the air feed element (3) of the burner via an air feed channel (5), extending along the combustion chamber cover and extending in a ring around the central burner chamber (12). The wall (6) of the air feed channel on the boiler side acts as the cover, its inner peripheral wall cooperating with the channel wall (8) on the opposite side to the boiler, for providing an annular space (9) leading to the burner space, while its outer peripheral wall (10) forms an air feed housing (13) which tapers tangentially in the direction of the air intake opening.